1. Department of Breast and Endocrine Surgery; Tokai University School of Medicine; Kanagawa Japan
2. Department of Breast and Endocrine Surgery; Okayama University Hospital; Okayama Japan
3. Department of Pathology; Nihon University School of Medicine; Tokyo Japan
4. Department of Pathology; Tokai University School of Medicine; Kanagawa Japan
5. Product Research; Chugai Pharmaceuticals Co. Ltd; Kanagawa Japan